Filter.



No. 821,360. PATBNTED MAY 22, 1906.

' F. B. HINKSON. FILTER} APPLICATION FILED MAY 3, 1905.

NITED STATESYPATENT 'fi iiliifii iirNKsoN; or NEWCASTLE, PENNSYLVANIQRQW? i nnnormo LIQUID PURIFYINGAN FILT m e coat,

. Bone, PENNSYLVANIA.

To' rt l l zgl om it may concern:

*B itknown" that I, FRANK.B. HINKSON, a

- resident of New Castle, in the county of Lawrence and State of Pennsylvania, have invented certain-new anduseful Improvements in Filters; and I-do hereby declare the following to be a full, clear, and exact description or the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

J Myinvention relates to an improved filter,

and more particularly to an improved filter wherein an electric current is employedto destroy all bacteria and also throw down impurities; and the inventionconsists in certam novel features of construction and combination and arrangements of'parts, as will be more fully hereinafter described, and

pointed out in the claims.

' 'A perforated pipe 5 is mounted toturn in par tition 2 and has a plugfi closing its lower end .30

and havin a thrust-bearingin' the casing-bottom. Dis s 7 are secured on pipe 5and plug 6 and are made on their adjacent faces with circular grooves to receive the opposite ends of a perforated metal cylinder 8, said cylinlating material in the grooves.

der being insulated from the disks 7 by insu- The space 'between the cylinder 8 and pipe 5 and be to be moved into or out of engagement at thetering-cylinder.

tween the disks 7 is-packed with mineral wool or similar filtering material 10, so that the water in .its passage through the same to pipe 5 will be cleansed. 4

A disk 10 is screwed onto plug 6 belowlower disk 7 and carries set-screws 11 to engage lower disk 7 and exactly position the fil- A brush 12 is locatedin an offset portion 13 of cylinder 1' and has an operating-arm 14 above the offset portion to permit-the brush will of the operator, and 'a shaft 15. is secured by a spidered ca' 16 to the upper end of pipe 5,

projects throng the top of easing 1, and has "FILTER...

Specification of Letters Patent. Y Application filed m 3,1905. Seritilllo. 258,602.

a crank-arm 17 or other mean permit the cylinder td be i evb brush 12 thereagainst ts cieari tli cam Water enters at ost ierpatses hteugh filtering medium, up' thrdrrgir ipipe criintt chamber 3, and escapes at a port 19, and a 'port 20 is provided in the casing-bottom,

throughwhich the sediment can be forced out.

A spring-pressed contact-plunger 21 is located in and insulated from a sleeve 22 in the at to a witltthe Wall of casing 1 and normally contacts with cylinder 8, and one terminal, 23, of an electric generator connects with this plunger 2 1, while the other terminal, 24. of saidelectric generator is secured in casing wall 1. ment of parts the cylinder 8 is charged with electricity, and as the cylinder is insulated from the disks 7 the current must jump across the water between the cylinder and casingwall, thoroughly impregnating the water By this arrangewith electricity and most'eilectually destroying bacteriaand throwing down other impurities.

While aluminium has been found very effective as the cylinder and plunger, other metals or material other than metal may be employed, and I do not restrict myself to any particular material for the purpose.

In the modified form shown in Fig. 2 I confine filtering material 25 between perforated disks 26 and compel the .water which enters at 27 to be charged with an electric current in its passage through the disks and filtering material and escapes at the ports 28. 29 and 30 indicate the electric connections with the casing and plates; but these connections mi ht be otherwise made, and as many of sai filtering mediums may be employed in a sin le receptacle as desired. 1 a

6ther changes might be made in the general form and arrangement of the parts 'de scribed without departing from my invention, and hence I do not restrict myself to the precise details set forth, but-consider myself at liberty to make such slightchanges and alterations as fairly fall within the spirit and scope of my invention.

' =Having fully described myinvention, what I claim as new, and desire to secure by Letters Patent, is-

1.. Ina iilter, the combination with a cashaving water inlet and outlet ports, of a perforated shell of electrically-conducting mate rial located within said casing, an electric cir'cult including said casing and shell, and filtering, material Within said shell.

2. In a filter, the combination of a rotary filter comprising an outer perforated r'ecepta-.

cle, means for electricallycharging said receptacle and filtering material confined within an electric contact spring-pressed plunger en 15;

gaging said receptacle";

4. In a filter, the combination of a metal covered filter, and a metal casing inclosing the same, and an electric circuit including the' metal covering of said filter and the metal 20 casing. v v a In testimony whereof I have signed this specification in the presence of twosubscribi'ng witnesses.

' FRANK B. HINKSON.

v Witnesses:

JosEPH 'M. FLANNERY, GODFREY W. LERCH. 

